All session history shows "No messages yet" after Desktop App update to v1.4758.0

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Version: v1.4758.0
After updating, all projects show "No messages yet" in the session list
.jsonl files are intact in ~/.claude/projects/ with full content
sessions[] arrays in ~/.claude.json are all empty (0 sessions for all 17 projects)
Data is not lost — UI is just failing to index/display existing sessions

What Should Happen?

See all chat history of existing sessions

Error Messages/Logs

Steps to Reproduce

Have existing Claude Code sessions with conversation history
Update Claude Code Desktop App to v1.4758.0 via the "Relaunch to update" prompt
Relaunch the app
Open any project from the session list
All sessions show "No messages yet"

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.121 (Claude Code) — Desktop App v1.4758.0

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_